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CVE-2025-66429 is a directory traversal vulnerability in the Team Manager API in cPanel versions 110 through 132. The issue is caused by insufficient validation of attacker-controlled input used in file path handling, allowing a local user to traverse directories and overwrite an arbitrary file on the system. By targeting sensitive files, the arbitrary file overwrite can be leveraged to escalate privileges to root.
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What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
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Patch, then assume compromise.
1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository consists of a single PHP file (index.php) that implements an advanced fuzzing engine targeting the cPanel API endpoint /execute/Team/add_team_user over HTTPS (port 2083). The script is designed to test for Local Privilege Escalation (LPE) and evasion vulnerabilities by sending a series of crafted POST requests using various attack vectors, including directory traversal, root directory injection, double URL encoding, null byte poisoning, and malformed JSON payloads. The script authenticates using credentials loaded from a local JSON file and analyzes the API responses heuristically to determine the likelihood of successful exploitation. The code is structured with clear separation between configuration, fuzzing logic, and response analysis, and is intended as a proof-of-concept for security testing of cPanel installations.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
4 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.
No news coverage yet. Advisories and community discussion only.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.